Primary Secretory Otitis Media (PSOM)
Primary secretory otitis media is a disease process that results in fluid accumulation within the tympanic cavity.
Age of Onset: Typically, dogs between the ages of 2 and 10 years are affected.
Sex Predisposition: Any sex of animal can be affected
Clinical Course:
Clinical signs may worsen over time, over the course of the dogs life they will likely experience recurrent episodes
Clinical signs may worsen over time, over the course of the dogs life they will likely experience recurrent episodes
Clinical Signs:
Behavioral/Mental Awareness
Fatigue
Abnormal yawning
Posture and Appearance
Guarded horizontal neck carriage
Head tilt
Pruritis around the ears without otitis externa
Otitis externa
Bulging of pars flaccida of the tympanic membrane noted via otoscopic exam
Movement
Ataxia
Cranial Nerves
Deafness
Facial paralysis
Nystagmus
Painful Reactions
Pain localized to the head or neck (most common presenting sign)
Painful ears
Spontaneous episodes of vocalization
Behavioral/Mental Awareness
Fatigue
Abnormal yawning
Posture and Appearance
Guarded horizontal neck carriage
Head tilt
Pruritis around the ears without otitis externa
Otitis externa
Bulging of pars flaccida of the tympanic membrane noted via otoscopic exam
Movement
Ataxia
Cranial Nerves
Deafness
Facial paralysis
Nystagmus
Painful Reactions
Pain localized to the head or neck (most common presenting sign)
Painful ears
Spontaneous episodes of vocalization
Middle ear cavity
Unknown
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